Manhattan Beach sea temperature today: 24°C – beach water temperature, Manhattan Beach, United States
United States · Los Angeles
Manhattan Beach
Sea
23.5°C74.3°F
Air
UV
Beach day
⁦23–28°C⁩

Last updated ·

Today, September 13, the sea temperature at Manhattan Beach is 23.5 °C (74 °F). That is 3.2 °C warmer than the usual 20.3 °C in September. Comfortable for swimming from July to October.

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Climate · monthly averages

Sea temperature by month

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.

Warmest in August (20.4°C). Coldest in March (13.9°C). Comfortable for swimming from July to October.

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
MonthSea · MinSea · AvgSea · MaxAir · MinAir · AvgAir · Max
January14.2°C14.6°C15.1°C9.7°C13.0°C16.8°C
February13.5°C14.2°C14.9°C10.0°C13.4°C16.9°C
March13.3°C13.9°C14.7°C10.3°C13.5°C16.4°C
April14.0°C14.6°C15.4°C12.0°C15.5°C18.6°C
May15.6°C16.3°C16.9°C14.0°C16.8°C19.6°C
June17.3°C17.9°C18.6°C16.3°C19.5°C22.6°C
July19.2°C19.5°C19.8°C18.3°C21.8°C25.3°C
August19.7°C20.4°C20.9°C19.1°C22.7°C26.2°C
September19.3°C20.3°C21.7°C18.7°C21.9°C25.1°C
October17.7°C18.8°C19.8°C15.4°C19.1°C22.5°C
November15.5°C16.8°C18.1°C12.2°C15.9°C19.5°C
December14.8°C15.8°C17.1°C10.6°C13.7°C17.1°C

About Manhattan Beach

Manhattan Beach hugs the South Bay coast north of the Palos Verdes Peninsula, and its anchor is the Manhattan Beach Pier – a 280-metre concrete pier built in 1920 with the octagonal Roundhouse Aquarium and its white-painted cupola at the end. El Porto stretches north as a local surf break under the refinery skyline, while Hermosa Beach runs south with a livelier pier and broader sand. The Pacific holds a kelp-dark 18-20 °C64-68 °F from July through September, with LAX about fifteen minutes by Sepulveda Boulevard.

Frequently asked questions

Today, September 13, the sea at Manhattan Beach is 23.5 °C (74 °F)74 °F (23.5 °C) – ideal for swimming for most people. The usual September average is 20.3 °C69 °F.

No single number works for everyone, so the scale on this page is only a guide to how the water feels: below 13 °C55 °F icy, 13–18 °C55–64 °F cold, 18–23 °C64–73 °F refreshing, 23–28 °C73–82 °F pleasantly warm and above 28 °C82 °F like a bath. Right now the sea at Manhattan Beach is 23.5 °C74 °F.

In May the sea at Manhattan Beach (Los Angeles, United States) averages 16.3 °C61 °F – cold, most people reach for a wetsuit. It keeps warming until August, when it peaks at 20.4 °C69 °F.

In October the sea at Manhattan Beach (Los Angeles, United States) still averages 18.8 °C66 °F – refreshing, good for a short swim. It peaks in August at 20.4 °C69 °F and cools slowly from there.